Authors: Geneviève Marchand, Cara McCreary, and Katie Goldenhar
Let’s start with the confusing part… I’m sure many growers have heard of Phomopsis. But how many are familiar with Diaporthe? We’ll just settle this right here and now. The Phomopsis species discussed in this blog post were renamed and now belong to the genus Diaporthe. (We are so grateful for taxonomists, but it’s hard to keep up with name changes sometimes!).
There are three different European corn borer (ECB) areas in southwestern Ontario – a 1-generation (univoltine) area, a 2-generation (bivoltine) area, and an overlap area that has both univoltine and bivoltine populations (Baute, 1999). Degree Days (DD) are heat accumulations using a base temperature (i.e. a minimum temperature required for development). A DD model was validated to predict flight patterns of ECB in southwestern Ontario (Baute, 1999). This model gives us an idea when ECB flight begins, peaks and ends based on moth captures and can be used to guide scouting efforts and management decisions. Below are the estimated accumulated DD for ECB in some regions of southwestern Ontario.
Continue reading “European corn borer Degree Day report – 12 July 2023”
Ever wonder why you spray the label rate of a pesticide, and you just don’t see good control? Does it have to do with your application method? Your crop? Or something to do with the label rate? According to Dr. Jason Deveau, OMAFRA’s Application Technology Specialist, the truth lies somewhere in between…
Continue reading “Upcoming GrowON Webinar: Comforting Lies and Unpleasant Truths about Pesticide Application Methods”
There are three different European corn borer (ECB) areas in southwestern Ontario – a 1-generation (univoltine) area, a 2-generation (bivoltine) area, and an overlap area that has both univoltine and bivoltine populations (Baute, 1999). Degree Days (DD) are heat accumulations using a base temperature (i.e. a minimum temperature required for development). A DD model was validated to predict flight patterns of ECB in southwestern Ontario (Baute, 1999). This model gives us an idea when ECB flight begins, peaks and ends based on moth captures and can be used to guide scouting efforts and management decisions. Below are the estimated accumulated DD for ECB in some regions of southwestern Ontario.
Continue reading “European corn borer Degree Day report – 25 June 2023”
There are three different European corn borer (ECB) areas in southwestern Ontario – a 1-generation (univoltine) area, a 2-generation (bivoltine) area, and an overlap area that has both univoltine and bivoltine populations (Baute, 1999). Degree Days (DD) are heat accumulations using a base temperature (i.e. a minimum temperature required for development). A DD model was validated to predict flight patterns of ECB in southwestern Ontario (Baute, 1999). This model gives us an idea when ECB flight begins, peaks and ends based on moth captures and can be used to guide scouting efforts and management decisions. Below are the estimated accumulated DD for ECB in some regions of southwestern Ontario.
Continue reading “European corn borer Degree Day report – 14 June 2023”POSTERITY® Fungicide label expanded via Minor Use Program to help manage Fusarium internal rot on Greenhouse Peppers and Botrytis grey mould on Greenhouse Lettuce
Written by Josh Mosiondz, Minor Use Coordinator, OMAFRA
The Pest Management Regulatory Agency (PMRA) recently announced the approval of a minor use label expansion registration for POSTERITY® Fungicide for suppression of Fusarium internal rot on greenhouse pepper and Botrytis grey mould on greenhouse lettuce in Canada. POSTERITY® Fungicide was already labeled for disease control on a wide range of crops in Canada. These minor use proposals were submitted by Agriculture & Agri-Food Canada, Pest Management Centre (AAFC-PMC) as a joint project with the United States Department of Agriculture (USDA) IR-4 project as a result of minor use priorities established by growers and extension personnel.
Continue reading “POSTERITY® Fungicide label expanded via Minor Use Program”
There are three different European corn borer (ECB) areas in southwestern Ontario – a 1-generation (univoltine) area, a 2-generation (bivoltine) area, and an overlap area that has both univoltine and bivoltine populations (Baute, 1999). Degree Days (DD) are heat accumulations using a base temperature (i.e. a minimum temperature required for development). A DD model was developed to predict flight patterns of ECB in southwestern Ontario (Baute, 1999). This model gives us an idea when ECB flight begins, peaks and ends based on moth captures and can be used to guide scouting efforts and management decisions. Below are the estimated accumulated DD for ECB in some regions of southwestern Ontario.
Continue reading “European corn borer Degree Day report – 05 June 2023”
There are three different European corn borer (ECB) areas in southwestern Ontario – a 1-generation (univoltine) area, a 2-generation (bivoltine) area, and an overlap area that has both univoltine and bivoltine populations (Baute, 1999). Degree Days (DD) are heat accumulations using a base temperature (i.e. a minimum temperature required for development). A DD model was validated to predict flight patterns of ECB in southwestern Ontario (Baute, 1999). This model gives us an idea when ECB flight begins, peaks and ends based on moth captures and can be used to guide scouting efforts and management decisions. Below are the estimated accumulated DD for ECB in some regions of southwestern Ontario.
Continue reading “European corn borer Degree Day report – 28 May 2023”